The Space-time Propagation Patterns of the Stratospheric Volcanic Aerosols and the Preliminary Analysis of Their Climate Effect

Qu Weizheng; Liu Yingchen; Huang Fei; Cao Yong; Qin Ting; Bai Yan

Vol.21, NO.5, 2010

Article Contents

Article Navigation > Journal of Applied Meteorological Science > 2010 > 21(5): 627-631

Qu Weizheng, Liu Yingchen, Huang Fei, et al. The space-time propagation patterns of the stratospheric volcanic aerosols and the preliminary analysis of their climate effect. J Appl Meteor Sci, 2010, 21(5): 627-631.

Citation:

Qu Weizheng, Liu Yingchen, Huang Fei, et al. The space-time propagation patterns of the stratospheric volcanic aerosols and the preliminary analysis of their climate effect. J Appl Meteor Sci, 2010, 21(5): 627-631.

Citation:

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The Space-time Propagation Patterns of the Stratospheric Volcanic Aerosols and the Preliminary Analysis of Their Climate Effect

Ocean University of China, Qingdao 266100

Received Date: 2009-11-27
Rev Recd Date: 2010-07-01
Publish Date: 2010-10-31

Abstract

Abstract

Based on the research of the propagation patterns of the stratospheric volcanic aerosols, the space time distribution function of Volcanic Explosivity Index (VEI) with the exponential decay is constructed which can reflect the volcano eruption intensity, the relative concentration, the propagation rate of the stratospheric volcanic aerosols and the volcano eruption location. Furthermore, time series of the volcanic activity indexes (1945—2008) every 3 months at middle and high latitudes of the Northern Hemisphere, the low latitudes of the Northern and Southern Hemisphere and the middle and high latitudes of the Southern Hemisphere are built up. Based on the time series of volcanic activity indexes, the influences of the volcano activity on the surface temperature at middle and high latitudes of the Northern Hemisphere, at low latitudes of the Northern and Southern Hemisphere and at middle and high latitudes of the Southern Hemisphere, are analyzed separately. The results indicate that either at the Northern and Southern hemisphere or at the tropical zone the ground layer air temperature decreases when the volcanic activity is strong, while it increases when the volcanic activity is weak. At the same time, the variations of the ground layer air temperature lag behind those of the volcanic activity.
- volcanic activity;
- climate effects;
- VEI;
- time series;
- volcanic aerosols

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References(19)

Figures and Tables

图 1 1974—1987年4级以上火山活动 (立柱) 与南半球30° 50°S地面气温 (细线) 和北半球30° 50°N地面气温 (粗线) 变化

Fig. 1 The volcanic activities above grade 4 of 1974—1987 (column), the ground surface temperaturein 30°—50°S (thin line) and the ground surface temperature in 30°—50°N (thick line)

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图 2 火山气溶胶和火山尘幕扩散规律

Fig. 2 The diffusing rules of volcanic aerosols and volcanic dust curtain

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表 1 1955—1958年北半球中高纬度VEI时间序列与北半球中纬度地面气温距平Δt

Table 1 The VEI time series in Northern Hemisphere in middle and high latitudes of 1955—1958 and the ground surface temperature anomaly in the middle latitudes of Northern Hemisphere

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